Listed below are changes in Monthly Energy Review content. Only months with changes beyond the standard updates are shown.

1) Final 2007 monthly and annual statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2007 Volume 2, are included in Petroleum, Energy Overview, and Energy Consumption by Sector. Also incorporated are final 2007 heat content values for petroleum imports and exports (Table A2) and total petroleum consumption and liquefied petroleum gases consumption (Table A3), affecting Btu data in “Energy Overview” and “Energy Consumption by Sector”; the 2007 final heat contents are used as estimated 2008 heat contents.

2) Under “Imports” in Natural Gas Trade by Country (Table 4.2), columns are added for Egypt and Oman; the column for Australia is removed; and the data in “Other” are adjusted.

1) Electricity statistics are undergoing an upgrade to incorporate data from the new survey Form EIA-923, “Power Plant Operations Report.” Until the conversion is completed, forecast values derived from EIA’s Short-Term Integrated Forecasting System will be used in Electricity (Section 7).

2) Ecuador rejoined the Organization of the Petroleum Exporting Countries (OPEC) in November 2007 and is now:

  Included in the OPEC data in Petroleum Trade: Imports from OPEC Countries (Table 3.3c) for 1973-1992 and again beginning in January 2008.

  Included in the Non-OPEC data in Petroleum Trade: Imports from Non-OPEC Countries (Table 3.3d) from 1993 through December 2007.

  Added to World Crude Oil Production: OPEC Members (Table 11.1a) for all time periods on this table.

  Removed from World Crude Oil Production: Non-OPEC Members (Table 11.1b) for all time periods on this table.

3) Columns are added to Fuel Ethanol Overview (Table 10.3) to show fuel ethanol production and consumption in million gallons.

4) A column is added to Biodiesel Overview (Table 10.4) to show biodiesel production in million gallons.

5) Heat content of coal (Table A5) revisions 2003-2007 affect Btu data in Section 1 and Section 2.

1) The first complete set of 2007 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

2) Estimates for 2006 and 2007 in Biodiesel Overview (Table 10.4), which were based on forecasts from EIA’s Short-Term Integrated Forecasting System, are revised based on actual 2006 and 2007 data from the U.S. Department of Commerce, as well as EIA estimates for biodiesel from yellow grease in 2006.

1) Energy Overview includes these changes:

2) Petroleum is reorganized to present summary petroleum statistics more effectively.

Several tables are changed in number only:

1) Natural gas statistics are revised for 2005 forward in coordination with EIA’s Natural Gas Annual 2006 and November 2007 Natural Gas Monthly. Revisions affect data series in Energy Overview (Tables 1.1-1.4b, 1.6, and 1.8), Energy Consumption, Natural Gas, and Prices (Tables 9.10 and 9.11).

2) The approximate heat rate for electricity net generation at fossil-fueled plants (Table A6) is revised for 2006 and 2007. Revisions affect data series in Energy Overview (Tables 1.1-1.4b, 1.6, and 1.8), Energy Consumption by Sector, and Renewable Energy (Tables 10.1 and 10.2c).

1) Electricity statistics are revised, in some cases for 2004-2007, consistent with EIA’s Electric Power Annual 2006 and November 2007 Electric Power Monthly. The changes affect electricity data in many tables, including Tables 1.1-1.4b, Section 2, Table 3.13b, Table 3.13c, Table 3.14b, Table 3.14c, Table 4.1, Table 4.3, Section 6, Section 7, Table 8.1, Table 9.9, Table 9.10, Table 9.11, and Section 10.

2) Other industrial coal consumption revisions in 2006 (Table 6.2) are coordinated with EIA’s Annual Coal Report 2006.

3) Coal heat content revisions (Table A5) and nuclear heat rate revisions (Table A6) affect Btu data in Section 1 and Section 2.

1) Total energy statistics include these changes:

  Primary Energy Production (Table 1.2):  “Biomass” is revised beginning in 1981 to include biofuels feedstock (i.e., inputs to the production of fuel ethanol and biodiesel).

  Primary Energy Consumption (Table 1.3):   “Petroleum” is revised beginning in 1993 to remove the ethanol portion of motor gasoline (because it is accounted for in “Biomass”). “Biomass” is revised beginning in 1981 to include biofuels losses and co-products, and beginning in 2001 to include biodiesel.

  Energy net imports data (previously, Table 1.4) are replaced by Energy Imports by Source (Table 1.4a) and Energy Exports by Source and Total Net Imports (Table 1.4b). Fuel ethanol imports are removed from “Petroleum” beginning in 1993 and shown separately.

  Energy Consumption per Real Dollar of Gross Domestic Product (Table 1.8): Fuel ethanol is removed from “Petroleum and Natural Gas” beginning in 1993; biofuels losses and co-products are added to “Other Energy” beginning in 1981; and biodiesel is added to “Other Energy” beginning in 2001.

2) Energy consumption by sector statistics include these changes:

  Energy Consumption by Sector (Table 2.1): The series previously called “Adjustments” is renamed “Balancing Item.”

  Commercial Sector (Table 2.3): Fuel ethanol is removed from “Petroleum” beginning in 1993. Fuel ethanol is added to “Biomass” beginning in 1981.

  Industrial Sector (Table 2.4): Fuel ethanol is removed from “Petroleum” beginning in 1993. Fuel ethanol and biofuels losses and co-products are added to “Biomass” beginning in 1981.

  Transportation Sector (Table 2.5): Fuel ethanol is removed from “Petroleum” beginning in 1993 and added to “Biomass.” Biodiesel is added to “Biomass” beginning in 2001.

3) Renewable energy summary statistics include these changes:

  Renewable energy overview (Table 10.1): Production data are added. “Biofuels” (fuel ethanol and biodiesel, including associated losses and co-products) replaces “Alcohol Fuels” under “Consumption.”

  Commercial Sector (Table 10.2a): “Fuel Ethanol” is added.

  Industrial Sector (Table 10.2b): “Fuel Ethanol” and “Losses and Co-products,” are added.

  Transportation Sector (Table 10.2b): “Fuel Ethanol” replaces “Alcohol Fuels,” and “Biodiesel” is added.

  Fuel Ethanol Overview (Table 10.3): is new in the Monthly Energy Review.

  Biodiesel Overview (Table 10.4): is new in the Monthly Energy Review.

4) Coal production revisions in 2006 (Table 6.1), and residential/commercial coal consumption revisions in 2005 and 2006 (Table 6.2), are coordinated with EIA’s Annual Coal Report 2006.

5) Approximate heat content data for “Fuel Ethanol,” “Ethanol Feedstock,” “Biodiesel,” and “Biodiesel Feedstock” are added to Table A3.

6) Final 2006 monthly and annual statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2006 Volume 2, are included in Petroleum, Energy Overview, and Energy Consumption by Sector.

Final 2006 monthly and annual crude oil and petroleum product prices, coordinated with EIA's Petroleum Marketing Annual 2006, are included in Energy Prices.

1) Beginning in 1980, natural gas data in Tables 1.3, 2.1-2.4, and 2.6 are revised to remove supplemental gaseous fuels. Because supplemental gaseous fuels are mostly derived from fossil fuels, which are already accounted for, they are removed to eliminate the previous double counting in Btu totals. See Note 3, “Supplemental Gaseous Fuels,” at the end of Section 4.

2) The Petroleum Section includes these new tables:

  Table 3.11  Petroleum Products Supplied by Type

  Table 3.12  Heat Content of Petroleum Products Supplied by Type

  Table 3.13a  Petroleum Consumption: Residential and Commercial Sectors

  Table 3.13b  Petroleum Consumption: Industrial Sector

  Table 3.13c  Petroleum Consumption: Transportation and Electric Power Sectors

  Table 3.14a  Heat Content of Petroleum Consumption: Residential and Commercial Sectors

  Table 3.14b  Heat Content of Petroleum Consumption: Industrial Sector

  Table 3.14c  Heat Content of Petroleum Consumption: Transportation and Electric Power Sectors

Natural gas imports from Nigeria are added to Table 4.2 and "Other" is adjusted to remove imports from Nigeria.

1) Angola is added to Table 3.3c because it became a member of the Organization of the Petroleum Exporting Countries on January 1, 2007.

2) "Natural Gas Overview" (Table 4.1) is redesigned. This month's version includes all of the data series that were on last month's Table 4.1 plus "Gross Withdrawals," "Marketed Production," and "Extraction Loss" from last month's Table 4.2, which is deleted. Last month's Tables 4.3-4.5 are renumbered as Tables 4.2-4.4, respectively.

3) Angola is added to Table 11.1a and deleted from "Total Non-OPEC" on Table 11.1b.

1) The first complete set of 2006 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

2) In Electricity, beginning with 2001, non-renewable waste (municipal solid waste from non-biogenic sources, and tire-derived fuels) is removed from “Waste” and included in “Total” electricity net generation (Tables 7.2a-7.2c) and in “Other” for the consumption of combustible fuels (Tables 7.3a-7.4c).

3) In Renewable Energy, beginning in 2001, non-renewable waste (municipal solid waste from non-biogenic sources, and tire-derived fuels) is removed from “Waste.” See article, “Methodology for Allocating Municipal Solid Waste to Biogenic and Non-Biogenic Energy,” on the Renewable Energy website under “Reports.”

4) In Energy Overview (Tables 1.1-1.3) and Energy Consumption by Sector, beginning in 2001, non-renewable waste (municipal solid waste from non-biogenic sources, and tire-derived fuels) is removed from “Biomass.” Because this portion is mostly derived from fossil fuels, which are already accounted for, it is also removed from total energy to eliminate the previous double counting.

1) “Waste Coal Supplied” (previously “Waste Coal”) is expanded from 1989-2000 to 1989 forward on Table 6.1. It is counted as a supply-side item to balance the same amount of waste coal that is included in “Consumption.” “Losses and Unaccounted for” data are revised as a result of the change.

2) Similarly, a new series for the approximate heat content of “Waste Coal Supplied” now appears on Table A5.

3) Beginning in 1989, “Waste Coal Supplied” is included in coal production data on Table 1.2.

4) Complete historical monthly data (beginning in 1973 where available) are now available in the Excel and CSV files for the Coal Section.

1) This issue of the Monthly Energy Review is the final one to be released in printed form. All of the data in the published report continues to be available on the Web site, and a complete PDF file of the report continues to be available at http://www.eia.doe.gov/emeu/mer/contents.html.

2) Monthly revisions for 2002-2004 occur in electricity end use (Table 7.6), causing related revisions in Energy Consumption by Sector.

1) “Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates” (Table 1.9) includes the annual update (i.e., new 2005 data and revised 2004 data).

2) Electricity statistics are revised, in some cases for 2001-2006. The revised data are consistent with the Electric Power Annual 2005 and the November 2006 Electric Power Monthly. The changes affect electricity data in many tables, including Table 4.4, Table 6.2, Section 7, Table 8.1, Table 9.9, Table 9.10, and Table 9.11.

3) Heat content revisions (Table A4 and Table A5) and heat rate revisions (Table A6) affect Btu data in Section 1, Section 2, and Section 10.

1) Final 2005 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2005 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

2) Petroleum values in Energy Consumption by Sector are revised to include (a) re-estimated distillate fuel oil consumption by sector beginning in 1984 and residual fuel oil consumption by sector beginning in 1989; and (b) improved sector breakdowns for kerosene, liquefied petroleum gases, lubricants, and motor gasoline for all years.

3) Complete historical monthly data are now available in the Excel and CSV files for the Renewable Energy Section.

Residential sector wood consumption estimates 1980-2002 and commercial sector wood consumption estimates 1989-2002 are revised in Renewable Energy, causing revisions to data in Energy Overview and Energy Consumption by Sector.

1) Throughout the report, price data in the tables and figures are labeled as nominal or real values.

2) A new column for “Net Imports” is added to “Coal Overview”(Table 6.1).

3) A new column for “Net Imports” is added to “Electricity Overview”(Table 7.1).

Revisions from 1980 forward on “Crude Oil and Natural Gas Exploratory and Development Wells” (Table 5.2) result from an accumulation of well completion reports from oil and gas operating companies. Also, the data column for “Total Footage Drilled,” which previously appeared on Table 5.1, is now shown on Table 5.2.

Biomass and geothermal data for 2003-2005, and solar data for 2004 and 2005, are revised to reflect data to be published in the Annual Energy Review 2005 and Renewable Energy Trends 2005.

The first complete set of 2005 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

Natural gas data in 2003 and 2004 are revised as a result of benchmarking to the 2004 data that were published in the Natural Gas Annual 2004. Revisions occur primarily in the production, underground storage, consumption, and prices-by-sector statistics.

Table columns in “Petroleum Consumption in OECD Countries” (Table 11.2) and “Petroleum Stocks in OECD Countries” (Table 11.3) are reordered to align with International Petroleum Monthly Tables 1.7 and 1.5, respectively.

Electricity statistics for 2001-2004 in Tables 7.1, 7.6, and 9.9; for 2003 and 2004 for Tables 9.10 and 9.11; and for 2004 in Tables 7.2a-7.5 are revised. The revised data are consistent with the Electric Power Annual 2004 and the December 2005 Electric Power Monthly.

Energy Plug: - Annual Coal Report 2004

1) "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.9) includes the annual update (i.e., new 2004 data and revised 2003 data).

2) Complete historical monthly data are now available in the Excel and CSV files for the Electricity Section. For Tables 7.2c, 7.3c, and 7.4a-c, monthly data begin in January 1989; for all others, monthly data begin in January 1973.

Energy Plug: - Short-Term Energy and Winter Fuels Outlook

Historical monthly data beginning in 1973 are now available on the Web files for Active Well Service Rig Count on Table 5.1.

Energy Plug: - International Energy Outlook 2005

1) The columns previoulsy called "Solar and Wind" are now displayed as separate "Solar" and "Wind" columns in Tables 1.2, 1.3, and 2.6.

2) Data in Energy Consumption by Sector tables previously displayed in quadrillion Btu are now displayed in trillion Btu.

3) Renewable Energy tables now include new columns for total biomass.

Energy Plug: - Short-Term Energy Outlook

1) Total energy consumption (Table 1.2), total energy production (Table 1.3), and electric power sector total primary energy consumption (Table 2.6) no longer include energy consumed by hydroelectric pumped-storage plants. The change was made because most of the electricity used to pump water into elevated storage reservoirs is generated by plants other than pumped-storage plants; thus, the associated energy is already accounted for in other data columns in the tables (such as conventional hydroelectric power, coal, and natural gas). Because the quantities removed were negative values (derived as pumped-storage facility production minus energy used for pumping, where energy used for pumping is usually larger), the overall effect of the change is to raise totals slightly for 1990 forward.

2) “Electricity End Use” (Table 7.6) has minor modifications to some column headers and switches the order of columns 6 and 7 with columns 8 and 9.

3) “Alcohols Fuels” (i.e., ethanol blended into motor gasoline) data for 2002-2004 are revised in Tables 2.5, 10.1, and 10.2b to incorporate final data from the Petroleum Supply Annuals.

Energy Plug: - Monthly Flash Estimates of Electric Data

Final 2004 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2004 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

Energy Plug: - Assessment of Selected Energy Efficiency Policies

Tables in the printed report and in the PDF files on the Web now display only a selected set of annual data. All available annual data are still included in the Excel and HTML files on the Web.

Energy Plug: - Impacts of Modeled Recommendations of the National Commission on Energy Policy

The layout of "Electricity End Use, " Table 7.6, is changed.

Energy Plug: - Analysis of Alternative Mercury Control Strategies

Energy Plug: - Performance Profiles of Major Energy Producers 2003

1) The first complete set of 2004 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

2) Estimated February 2005 petroleum data are not available is this report. For those data, see: Weekly Petroleum Status Report.

3) Petroleum tables have the following changes:

  Table 3.1a and Table 3.1b: “Refinery and Blender Net Production,” “Refinery and Blender Net Inputs,” “Adjustments,” “Total Stock Change,” “Total Stocks,” “Crude Oil Stocks,” and “Petroleum Products Stocks” are new; “Field Production Total” replaces “Field Production Total Domestic”; and “Net Imports” is discontinued (see Table 1.7).

  Table 3.2a: “48 States Field Production” and “Adjustments” are new; “Other Imports” is now called “Commercial Imports”; and “Unaccounted-for Crude Oil” and “Crude Oil Used Directly” are discontinued.

  Table 3.2b: “Total Stock Change” is new; “Other Stock Change” is now called “Commercial Stock Change”; “Other Primary Stocks” is now called “Commercial Stocks,” and “Crude Losses” is discontinued.

  Table 3.4: “Refinery and Blender Net Production” replaces “Total Production”; “Adjustments” is new; and the order of the stocks columns is changed.

  Table 3.5: “Refinery Net Production” replaces “Total Production”; “Adjustments” is new; “Crude Oil Used Directly” is discontinued; and the “Sulfur Content” columns under “Stocks” are revised. 

  Table 3.6: “Refinery Net Production” replaces “Total Production”; “Adjustments” is new; and “Sulfur Content” categories are added under “Stocks.”

  Table 3.7: “Refinery Net Production” replaces “Production”; and the order of the “Kerosene Type” and “Total” columns is switched.

  Table 3.8: “Field Production” and “Refinery Net Production” replace “Total Production.”

  Table 3.9: “Field Production” and “Refinery Net Production” replace “Total Production.”

  Table 3.10: “Field Production” and “Refinery Net Production” replace “Total Production”; “Adjustments” is new; and “Refinery Inputs” is now called “Refinery and Blender Net Inputs.”

Energy Plugs: - Annual Energy Outlook 2005

- The Natural Gas Industry and Markets in 2003

Energy Plug: - Financial News for Independent Energy Companies

Some tables and figures in the Electricity section are renumbered:

Renumbered Tables:

December 2004

January 2005

  7.3a
  7.3b
  7.3c
  7.3d
  7.3e
  7.3f
  7.4
  7.5

  7.4a
  7.4b
  7.4c
  7.3a
  7.3b
  7.3c
  7.5
  7.6

Renumbered Figures:

December 2004

January 2005

  7.3a
  7.3b
  7.4
  7.5b

  7.4
  7.3
  7.5
  7.6

Energy Plugs: - Unique Reactors

- Green Pricing and Net Metering 2003

"Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.8) includes the annual update (i.e., new 2003 data and revised 2002 data).

Energy Plug: - Oil Market Basics

Energy Plugs: - Annual Energy Review 2003

- U.S. Natural Gas Pipeline and Underground Storage Expansions in 2003

Retail sales of electricity for transportation use is now available on Table 7.5 and the average retail price of electricity sold for transportation use is now available on Table 9.9.

Energy Plug: - State Renewable Energy Requirements and Goals

Energy Plug: - Biodiesel Performance, Costs, and Use

1) Final 2003 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2003 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

2) All data in "Cost of Fossil-Fuel Receipts at Electric Generating Plants" (Table 9.10) are revised from cents per million Btu to dollars per million Btu and new columns for distillate fuel oil and petroleum coke are added to the table.

World annual petroleum consumption is revised for 1980 forward in Table 11.2.

“Electricity End Use,” Table 7.5, is redesigned to show retail sales on the “old basis” (residential, commercial, industrial, and other) and on the “new basis” (residential, commercial, industrial, and transportation).

Energy Plug: - International Energy Outlook 2004

A new column for "Other Liquids" is added to Table 7.5, "Stocks of Coal and Petroleum: Electric Power Sector" under the "Petroleum" spanner.

Energy Plugs: - Analysis of Restricted Natural Gas Supply Cases

 - Performance Profiles of Major Energy Producers 2002

The first complete set of 2003 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

Energy Plug: - Natural Gas Annual 2002

Energy Plug: - Annual Energy Outlook 2004

Energy Plug: - Renewable Energy Annual 2002

1) "Energy Consumption per Dollar of Gross Domestic Product" (Table 1.8) carries the gross domestic product (GDP) data rebased from chained 1996 dollars to chained 2000 dollars, and the "Energy Consumption per Dollar of GDP" series are recalculated.

2) "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.9) includes the annual update (i.e., new 2002 data and revised 2001 data).

Energy Plug: - Annual Coal Report 2002

Energy Plug: - Annual Energy Review 2002

Energy Plug: - Foreign Direct Investment in U.S. Energy in 2001

Energy Plug: - New Reactor Designs

Energy Plug: - Residential Energy Consumption Special Topics

Energy Plug: - Uranium Industry Annual 2002

Final 2002 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2002 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

Energy Plug: - International Energy Outlook 2003

Energy Plug: - Electric Power Annual 2001

Section 1, Energy Overview

  The "Energy Summary" table that previously appeared as Table 1.1 is discontinued. The remaining tables in the section are renumbered.

  Table 1.1, Energy Overview columns are reordered to show "Production" to "Consumption" (left to right) and to add a column for "Adjustments." "Net Imports" no longer shows on this table; those data appear on Table 1.4. Consumption data are revised 1985-2002; see Table 1.3 for additional information.

  Table 1.2, Energy Production has data revisions, including "Nuclear Electric Power" due to revised heat rates (see Table A6) and "Renewable Energy" (see Section 10).

  Table 1.3, Energy Consumption is revised due to changes in several components, including: "Nuclear Electric Power" due to revised heat rates (see Table A6); "Natural Gas" due to a change in the source for natural gas used by the electric power sector (see Table 4.4); coal (see Table 6.2); and renewable energy (see Table 10.1). Also, the calculation of electricity net imports, which is a component of total energy consumption, is revised; see Table 1.4 for more information.

  Table 1.4, Energy Net Imports includes revised data for electricity. EIA previously estimated the proportions of traded electricity from fossil fuels and hydropower (and applied the fossil-fuel steam-electric-plant heat rate to convert from kilowatthours to Btu) and from geothermal (and applied the heat rate for geothermal energy plants). EIA no longer has adequate data to estimate the proportions by source and is now applying an overall rate of 3,412 Btu per kilowatthour to all traded electricity.

  Table 1.8, Energy Consumption per Dollar of Gross Domestic Product consumption data are revised; see Table 1.3 for more information.

Section 2, Energy Consumption by Sector

  Energy consumption data are revised due to changes in several components; see Table 1.3 for more information.

Section 4, Natural Gas

  Table 4.1, Natural Gas Overview is redesigned with separate columns for "Imports" and "Exports" (replacing "Net Imports") and separate columns for "Withdrawals From Storage" and "Additions to Storage" (replacing "Net Withdrawals From Storage"). Also, "Consumption" data are revised for 1993 forward; see Table 4.4 and Appendix D for more information.

  Table 4.4, Natural Gas Consumption by Sector is redesigned. Independent power producers' use of natural gas is moved from the industrial sector to a new electric power sector. Data for the new sector are derived from electricity data collection forms, replacing that supplied on natural gas forms. As a result, total consumption is revised from 1993-2002. Also, data are now shown for industrial sector consumption by combined-heat-and-power (CHP) plants and non-CHP plants. For more information, see Appendix D.

Section 6, Coal

  Table 6.1, Coal Overview is redesigned to replace "Stocks" with "Stock Change" and to add columns for "Waste Coal" and "Losses and Unaccounted for." Also, "Consumption" data are revised for 1989 forward. See Appendix D for more information.

  Table 6.2, Coal Consumption by Sector is redesigned to show commercial sector and industrial sector combined-heat-and-power plant consumption separately from other consumption in each sector. For a discussion about these changes and other effects on historical data, see Appendix D. Residential and commercial data are revised due to new methodology---see Note 2 at end of Section 6 for more information.

  Table 6.3, Coal Stocks by Sector is redesigned. Coal stocks, which were previously shown separately for "Electric Utilities" and "Other Power Producers," are now shown only combined as "Electric Power Sector."

Section 7, Electricity

  The electricity section is redesigned to incorporate improved statistics and provide more detailed data. The changes make the Monthly Energy Review (MER) electricity data and the fuel data in other sections of the report consistent, and bring the MER data in line with those in the Annual Energy Review (AER), which was redesigned in the AER 2001 release. MER tables now show electricity net generation by electric power, commercial, and industrial sectors. Consumption of combustible fuels is also shown by those sectors and further broken down into use for electricity generation only and use for electricity generation and useful thermal output at combined-heat-and-power (CHP) plants. For additional discussion of the data changes and their impacts, see Appendix D, "Estimating and Presenting Power Sector Fuel Use in EIA Publications and Analyses." Tables in the March report are related to those in the April report as follows:

 

March 2003

April 2003

 7.1
 7.2
 7.3
 7.4
  ---
  ---
  ---
 7.6
 7.7
 7.8
 7.9
 7.5

 7.1
 7.2a
 7.2b
 7.2c
 7.3a
 7.3b
 7.3c
 7.3d
 7.3e
 7.3f
 7.4
 7.5

Section 8, Nuclear Energy

  Table 8.1, Nuclear Energy Overview is redesigned to show "Total Operable Units," which was previously shown on Table 8.2, "Nuclear Generating Units." Table 8.2 has been deleted; annual data on this topic will continue to appear in the Energy Information Administration's Annual Energy Review.

Section 9, Energy Prices

  Table 9.10, Cost of Fossil-Fuel Receipts at Electric Generating Plants which previously showed quantity and cost of receipts, now shows cost of receipts only. Also, "Petroleum Total" and "All Fossil Fuels" averages for 1990-2000 are recalculated to incorporate the cost of petroleum coke, which had not been included previously. In addition, beginning with the January 2002 data, coverage is expanded from electric utilities only to include independent power producers and electric generating plants in the commercial and industrial sectors as well.

  Table 9.11, Natural Gas Prices is expanded to include percent-of-sector data, where available, for the residential and electric power sectors.

Section 10, Renewable Energy

Data are revised in this section for several reasons, including:

  Electricity net imports that are derived from hydroelectric power and geothermal energy are no longer included in the renewable energy consumption totals that are shown on Tables 10.1 and 10.2c. Those quantities continue to be included in total U.S. energy consumption as components of electricity net imports, with fuel sources unspecified (see Tables 1.3 and 2.6). The change results in a 0.1-to-0.5 quadrillion Btu drop in total renewable energy consumption from 1973 forward.

  Wood and waste energy consumption data for 1989-2002 are revised; biomass data are now developed by aggregating individual power plant data for nonutilities instead of applying a generalized net generation figure.

  Hydropower, solar, geothermal, and wind energy consumption data for 1989-2002 are revised as a result of a thorough review of historical nonutility electric plant data.

Section 11, International Petroleum

  Table 11.4a - 11.4e, "Nuclear Electric Gross Generation," are no longer included in the Monthly Energy Review. Annual data on this topic will continue to appear in the Energy Information Administration's Annual Energy Review.

Appendix A, Thermal Conversion Factors

  Table A3-A5, are revised to show heat content averages for the "Electric Power Sector" instead of for "Electric Utilities." Some other sector averages are recalculated to reflect adjustments in the sector definitions.

  "Estimating and Presenting Power Sector Fuel Use in EIA Publications and Analyses" is a new, temporary section in the Monthly Energy Review that describes and discusses the changes related to the electricity statistics that are incorporated into this month's release.

Energy Plug: - Voluntary Reporting of Greenhouse Gases 2001

The first set of year 2002 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

Energy Plug: - Performance Profiles of Major Energy Producers 2001

Energy Plug: - Annual Energy Outlook 2003

Energy Plug: - Renewable Energy Annual 2001

Energy Plug: - Annual Energy Review 2001

1) "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" Table 1.10 includes the annual update (i.e. revised 2000 data and new 2001 data).

2) Graphs are created using new software and are now displayed in color in the portable document format (PDF) file (MER).

Energy Plug: - Winter Fuels Outlook: 2002-2003

Energy Plug: - Diesel Fuel Price Pass-through

Energy Plugs: - Foreign Direct Investment in U.S. Energy in 2000

 - U.S. Natural Gas Markets: Relationship Between Henry Hub Spot Prices and U.S. Wellhead Prices

Energy Plugs: - Biomass for Electricity Generation

 - Measuring Changes in Energy Efficiency

Energy Plugs: - Delivered Energy Consumption Projects by Industry

 - Uranium Industry Annual 2001

Final 2001 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2001 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

Energy Plugs: - Weekly Natural Gas Storage Report

 - International Energy Annual 2000

"Web Page" addresses are added (above the "Sources" line) at the bottom of each table and figure in the report to direct the reader to related data in electronic form, such as spreadsheets of the data that are shown in the tables and figures and links to related long-term annual series in the Annual Energy Review.

Energy Plugs: - Summer 2002 Motor Gasoline Outlook

 - International Energy Outlook 2002

Energy Plug: - Analysis of Corporate Average Fuel Economy Standards

 for Light Trucks and Increased Alternative Fuel Use

The first set of year 2001 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

Dedication: to Chuck Allen

Energy Plug: - Voluntary Reporting of Greenhouse Gases 2000

A new series appears for "Active Well Service Rig Count." The new series is from Weatherford International, Inc., and it begins with July 2001 data.

Energy Plug: - Performance Profiles of Major Energy Producers 2000

1) Section 5, "Crude Oil and Natural Gas Resource Development," has several changes this month:

  "Wells Drilled by Type" and "Maximum U.S. Active Seismic Crew Counts" are added to Figure 5.1.

  "Crews Engaged in Seismic Exploration" time series, which ceased after 1993, are deleted from Table 5.1.

  "Onshore" and "Offshore" rotary rigs are reversed in order on Table 5.1 to align with the prsentation in new Table 5.3.

  A new table, Table 5.3, "Maximum U.S. Active Seismic Crew Counts," is added.

2) Coal types (anthracite, bituminous coal, and lignite) are no longer displayed on Table 7.7, "Consumption of Fossil Fuels To Generate Electricity at Electric Utilities."

3) Appendix E, "Renewable Energy," which was added to the "Monthly Energy Review" a year ago, is moved up to Section 10. The previous Section 10, International Energy, is renumbered to be Section 11.

Energy Plugs: - Energy Education Resources

 - U.S. Natural Gas Markets: Mid-Term Prospects for Natural Gas Supply

1) Comprehensive updates are incorporated for (Natural Gas) for 1998 forward.

2) "Petroleum Consumption in OECD Courntries" (Table 11.2) has several improvements, including the addition of monthly and annual data for South Korea and annual data for the world.

3) "Petroleum Stocks in OECD Courntries" (Table 11.3) has several improvements, including the addition of data for South Korea.

Energy Plugs: - Energy Outlook 2002, Early Release

 - Emissions of Greenhouse Gases in the United States 2000

 - State Energy Price and Expenditure Report 1999

1) "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.9) includes the annual update (i.e., new 2000 data and revised 1999 data).

2) A new page of graphs on renewable energy consumption (Figure 10.1E) is added.

Energy Plugs: - Winter Fuels Outlook: 2002-2002

 - Fuel Oil and Kerosene Sales 2000

 - The Majors' Shift to Natural Gas

Energy Plug: - Electric Power Annual 2000, Volume 1

Graphs in the Electricity section are redesigned to provide better coverage of the entire electric power sector.

Energy Plugs: - Annual Energy Review 2000

 - World Energy "Areas To Watch"

Energy Plug: - Coal Industry Annual 1999

Energy Plug: - Energy Market Maps

Final 2000 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 2000 Volume 2, are included in Petroleum and summary data in Energy Overview and Energy Consumption by Sector.

Energy Plugs: - State Energy Data Report 1999: Consumption Estimates

 - The Transition to Ultra-Low-Sulfur Diesel Fuel: Effects on Prices and Supply

Energy Plugs: - Summer 2002 Motor Gasoline Outlook

 - International Energy Outlook 2002

Energy Plug: - Renewable Energy 2000: Issues and Trends

The first set of year 2000 preliminary statistics for U.S. total energy consumption, production, and trade is provided in Energy Overview and Energy Consumption by Sector.

Energy Plugs: - Impact of Interruptible Natural Gas Service on Northeast Heating Oil Demand

 - Performance Profiles of Major Energy Producers 1999

Energy Plug: - Energy Education Resources

1) A new Appendix E is introduced with detailed data on renewable energy.

2) The additional renewable energy data from Appendix E is incorporated into Monthly Energy Review summary tables, such as Energy Production by Source (Table 1.3), Energy Consumption by Source (Table 1.4), and Net Imports of Energy by Source (Table 1.5). The additional renewable energy data raise both U.S. total energy production and U.S. total energy consumption in 1999 by about 4 quadrillion British thermal units (Btu).

3) All tables in Section 2 (Energy Consumption) are redesigned to incorporate the additional quantities of renewable energy.

Energy Plugs: - Annual Energy Outlook 2002 Early Release

 - Residential Heating Oil Prices: What Consumers Should Know

Comprehensive updates are incorporated for natural gas 1999 data and nonutility power producers' electricity 1999 data.

Energy Plugs: - Residential Natural Gas Prices: What Consumers Should Know

 - The Changing Structure of the Electric Power Industry 2000: An Update

In the "Energy Summary" section, "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.9) includes the annual update (i.e., new 1999 data and revised 1998 data).

Energy Plugs: - Propane Prices: What Consumers Should Know

 - Winter Fuels Outlook: 2000-2002

 - Advance Summary: U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 1999 Annual Report

1) Monthly Energy Review web pages are modified to add links to relevant Annual Energy Review (AER) tables, where appropriate. For analysts interested in extended time series, AER tables present annual data from 1949 forward, where available. (A note of caution: where data in the MER and AER differ (usually in the latest year or two), analysts should use the MER data since those are more current.)

2) "Other Power Producers" coal consumption data are shown for the first time for 1989-1991 and are revised for 1992-1996 in Table 6.2. The coal consumption changes affect total energy calculations (e.g., see Overview Table 1.4 for those years).

Energy Plugs: - U.S. Carbon Dioxide Emissions From Energy Sources: 1999 Flash Estimate

 - The Electric Transmission Network: A Multi-Region Analysis

Monthly Energy Time Series (METS): With the August 2000 release of the Monthly Energy Review (MER), the Energy Information Administration announces a new facility to access long-term monthly time series that parallel the data series routinely released in the MER. Wherever possible, monthly time series from January 1973 forward are now available electronically through METS.

To reach the new time series, tap on any energy topic on the MER home page. METS connections are indicated for any MER data table that has long-term historical monthly data available.

METS replaces an EIA product called the Historical Monthly Energy Review (HMER), which was released in paper copy in September 1991 and updated and released again in August 1994.

Energy Plugs: - A Primer on Gasoline Prices

 - Long-Term World Oil Supply: A Resource Base/Production Path Analysis

1) Overview of U.S. Petroleum Trade (Table 1.8) is expanded to include imports from OPEC, imports from OPEC as a share of products supplied, and imports from OPEC as a share of total imports.

2) Coal Stocks (Table 6.3) is expanded to include estimated stocks held by "Other Power Producers" from January 1998 forward. The table is redesigned to present coverage of the entire electric power sector rather than of electric utilities only.

3) The wellhead price of natural gas (Table 9.11) now includes two additional months of forecast prices.

Energy Plug: - Annual Energy Review 1999

Nonutility power producers' 1999 revised monthly data and 2000 monthly data through April are now available for electricity net generation (Table 7.4), consumption of fossil fuels to generate electricity (Table 7.8), and stocks of coal and petroleum (Table 7.9).

Energy Plugs: - State Energy Price and Expenditure Report 1997

 - Energy Consumption and Renewable Energy Development Potential on Indian Lands

Final 1999 monthly statistics for the supply and disposition of crude oil and petroleum products, coordinated with EIA's Petroleum Supply Annual 1999 Volume 2, are included in Petroleum and summary data in Sections 1 and 2.

Energy Plug: - Motor Gasoline Assessment 2000

Energy Plugs: - International Energy Outlook 2000

 - Biomass Ethanol Production and Demand

Energy Consumption per Dollar of Gross Domestic Product is recalculated for the entire series 1973 forward to incorporate the revised gross domestic product series that was recently released by the U.S. Department of Commerce, Bureau of Economic Analysis.

Energy Plugs: - OPEC Revenues Fact Sheet

 - Country Analysis Brief: Iran

1) In the "Energy Summary" section, "Motor Vehicle Mileage, Fuel Consumption, and Fuel Rates" (Table 1.10) expands and replaces "Passenger Car Efficiency." In addition to passenger car mileage, fuel consumption, and fuel rates on the old table, the expanded version provides similar statistics for two additional categories of vehicles---"Vans, Pickup Trucks, and Sport Utility Vehicles" and "Trucks"---and for all vehicles together under "All Motor Vehicles."

2) Nuclear Energy statistics are expanded from 1989 forward to cover all nuclear units in the entire electric power sector, including those that are nonutility facilities. The additional quantities of electricity net generation are also incorporated into consumption statistics in Overview Tables 1.1 through 1.4 and 1.9 and consumption data in Energy Consumption by Sector.

3) New thermal heat rates for modern motor gasoline that incorporate oxygenated and reformulated gasolines are used to develop petroleum and total energy statistics in British thermal units (Btu). Annual national consumption-weighted averages of oxygenated, reformulated, and conventional motor gasoline heat rates are applied for all months beginning in 1994, the first year for which consistent data are available. That is, the motor gasoline factor for converting data from barrels to Btu is no longer a constant value but is now an annual variable based on the quantity of each type of motor gasoline consumed each year. Implementation of the new heat rates impacts all petroleum and total energy consumption, imports, and exports data in Btu from 1994 forward. See Table A3 for heat rates.

4) Overview and Energy Consumption by Sector report the first set of statistics for the full year of 1999.

Energy Plugs: - International Energy Annual 1998

 - Performance Profiles of Major Energy Companies 1998

1) In the "Coal," "Energy Consumption," and "Overview" sections, consumption data are revised to incorporate coal used by "Other Power Producers" into the U.S. energy accounts for 1992 forward. The changes are summarized as follows: Table 6.2 is redesigned to present "End-Use Sectors" and an "Electric Power Sector," which includes "Other Power Producers" for the first time. Table 6.1 coal consumption is recalculated from 1992 forward to reflect the additional coal consumed by the other power producers. All data in the Energy Consumption by Sector section were recalculated for 1992 forward to reflect the incorporation of the additional coal. All consumption-related data in the Overview section (Tables 1.1, 1.2, 1.4, and 1.9) also were recalculated for 1992 forward.

2) The "Electricity" section includes an expansion of Table 7.5 to add nonutilty power producers data where available.

3) The data presented on nuclear electricity gross generation by region and country are reorganized. The contents of Tables 10.4d and 10.4e are switched to bring Eastern Europe in place right after Western Europe. The summary table, Table 10.4a, is revised similarly.

Energy Plugs: - Inventory of Nonutility Electric Power Plants in the United States 1998

 - The Changing Structure of the Electric Power Industry 1999: Mergers and Other Corporate Combinations

The Electricity section is extensively redesigned. New tables and figures present an improved overview of the entire industry and give better coverage of the rapidly expanding nonutility power producers. Detailed data are now available for net generation of electricity by energy source for the industry as a whole and separately for utilities and nonutilities. In addition, the consumption of fossil fuels to generate electricity and stocks of coal and petroleum are now summarized for the entire industry and are also presented separately for utilities and nonutilities. By table number, the changes are summarized as follows:

  Table 7.1 is new.

  Table 7.2 is new.

  Table 7.3 relates closely to old Table 7.1.

  Table 7.4 relates to old Table 7.5.

  Table 7.5 is the same as old Table 7.2.

  Table 7.6 relates to old Table 7.6.

  Table 7.7 relates closely to old Table 7.3.

  Table 7.8 relates to old Table 7.6.

  Table 7.9 relates to old Table 7.4.